Communication Apparatus Dynamic OMA NOMA Switching
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Solution Overview
Problem
Next-generation wireless communication systems, such as NR, face challenges in achieving higher frequency usage efficiency to support diverse use cases like eMBB, mMTC, and URLLC, with existing technologies falling short in maximizing transmission efficiency across various scenarios.
Innovation Solution
A communication apparatus and method that dynamically select between orthogonal multiple access (OMA) and non-orthogonal multiple access (NOMA) based on acquired information, allowing base stations to optimize communication protocols for improved transmission efficiency across diverse use cases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If orthogonal multiple access (OMA) is used for communication, then communication reliability is maintained, but frequency usage efficiency is limited
Solution Approach 1:
The patent implements dynamic switching between OMA and NOMA communication modes based on real-time channel conditions and traffic requirements. The base station determines whether to apply OMA or NOMA for each user equipment individually, allowing the system to adapt flexibly between reliable orthogonal access and efficient non-orthogonal access, thereby resolving the contradiction between communication reliability and frequency usage efficiency.
2Productivity
If non-orthogonal multiple access (NOMA) is used for communication, then frequency usage efficiency is improved, but communication complexity increases
Solution Approach 1:
The patent applies different communication modes (OMA or NOMA) to different user equipment based on their specific channel conditions, service requirements, and locations. Instead of uniformly applying NOMA to all users, the system selectively applies it only where beneficial, thereby improving frequency efficiency for suitable users while avoiding unnecessary complexity for others.
Solution Approach 2:
The system dynamically changes communication parameters including the selection of access mode (OMA/NOMA), power allocation coefficients, and resource block assignments based on real-time channel state information. This parameter adaptation allows the system to optimize frequency usage efficiency while managing complexity through intelligent control rather than structural complexity.
3Device complexity
If a fixed communication mode is used, then system simplicity is maintained, but adaptability to diverse use cases is reduced
Solution Approach 1:
The patent implements dynamic mode selection between OMA and NOMA based on real-time assessment of channel conditions, traffic types, and service requirements. This dynamic approach enables the system to adapt to diverse use cases including eMBB, mMTC, and URLLC scenarios while maintaining operational simplicity through automated decision-making algorithms at the base station.
Data Source
AI summary
There is provided a communication system in which a base station apparatus communicates with a terminal apparatus and a communication apparatus flexibly designed to address diverse use cases so as to significantly enhance the transmission efficiency of the system as a whole. The communication apparatus includes an acquisition section that acquires information from an apparatus in wireless communication, and a control section that selects either orthogonal multiple access communication or non-orthogonal multiple access communication for communication with the apparatus on the basis of the information acquired by the acquisition section.